uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/servers/dns/ncdns/fix-tpl-path.patch

@@ -0,0 +1,27 @@
+This sets a default value for the tpl directory that works for Nixpkgs.
+
+diff --git a/server/web.go b/server/web.go
+index d024a42..0522d02 100644
+--- a/server/web.go
++++ b/server/web.go
+@@ -10,6 +10,7 @@ import "path/filepath"
+ import "time"
+ import "strings"
+ import "fmt"
++import "os"
+ 
+ var layoutTpl *template.Template
+ var mainPageTpl *template.Template
+@@ -44,7 +45,11 @@ func deriveTemplate(filename string) (*template.Template, error) {
+ }
+ 
+ func (s *Server) tplFilename(filename string) string {
+-	td := filepath.Join(s.cfg.ConfigDir, "..", "tpl")
++	ex, err := os.Executable()
++	if err != nil {
++		panic(err)
++	}
++	td := filepath.Join(filepath.Dir(ex), "..", "share", "tpl")
+ 	if s.cfg.TplPath != "" {
+ 		td = s.cfg.TplPath
+ 	}